Which statement is TRUE concerning insulating flanges ________．A.They should be inspected and tested periodically to ensure that the insulation is clean and in good conditionB.Switching off a cathodic protection system may be substituted for using an insulating flangeC.The measured resistance value after installation should be less than 1，000 ohmsD.After the insulating flange is installed，hot work may be performed on deck
Which statement is TRUE concerning insulating flanges ________．
A.They should be inspected and tested periodically to ensure that the insulation is clean and in good condition
B.Switching off a cathodic protection system may be substituted for using an insulating flange
C.The measured resistance value after installation should be less than 1，000 ohms
D.After the insulating flange is installed，hot work may be performed on deck
相关考题：
Which statement is TRUE concerning apogean tides ________．A.They occur only at quadratureB.They occur when the Moon is nearest the EarthC.They cause diurnal tides to become mixedD.They have a decreased range from normal
Which statement is TRUE concerning equatorial tides ________．A.They occur when the Sun is at minimum declination north or southB.They occur when the Moon is at maximum declination north or southC.The difference in height between consecutive high or low tides is at a minimumD.They are used as the basis for the vulgar establishment of the port
Which statement concerning current is TRUE ________．A.Current can be determined by measuring the direction and distance between simultaneous EP and DR positionsB.The drift of the current should be averaged out on a one hour basisC.After the current is determined，it should not be used for further plotting because it is an unknown variableD.The distance between a simultaneous DR position and fix is equal to the drift of the current
Which statement is TRUE concerning the flash point of a substance ________．A.It is lower than the ignition temperatureB.It is the temperature at which a substance will spontaneously igniteC.It is the temperature at which a substance，when ignited，will continue to burnD.It is the temperature at which the released vapors will fall within the explosive range
Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ________．A.Stack weights should be less when using a solid bar lashing as compared to a wire lashingB.Stack heights may be increased when using a solid bar lashingC.Stack heights should be reduced when using a solid bar lashingD.Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier（s）
Which statement is correct concerning the carriage of coal in bulk ________．A.Coal should be vented with surface ventilation onlyB.Because of its inherent vice，coal should not be loaded wetC.Dunnage should be placed against ship's sides and around stanchionsD.Through ventilation，as well as surface ventilation，should be provided whenever possible
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited ________．A.It is required on all vesselsB.It may be located in a conspicuous place in the wheelhouseC.It may be located at the bilge and ballast pump control stationD.All of the above
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Which statement is TRUE concerning combustible gas indicators ________．A.One sample of air is adequate to test a tankB.They do not work properly where there is a lack of oxygenC.They will detect a lack of oxygenD.They are calibrated to read the percentage chance of explosion
Which statement concerning GPS is TRUE ________．A.It cannot be used in all parts of the worldB.There are 12 functioning GPS satellites at presentC.It may be suspended without warningD.Two position lines are used to give a 2D fix
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单选题Your 15-meter tug is underway and crossing a deep and narrow channel. A large container vessel is off your port bow on a steady bearing. Which statement is TRUE concerning this situation? （）.AYou should maintain course and speedBThe container vessel is the stand-on as it is the larger vesselCYou are not to impede the safe passage of the container vessel in the channelDNone of the above
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单选题Which statement concerning sweat damage in containers is TRUE?（）.ASweat damage in containers is unusual due to the small enclosed volume of airBIn general，containerized hygroscopic cargoes are the only ones subject to sweat damageCContainers should be ventilated，dehumidified，or the contents physically protected against sweat damageDSweat damage is not a problem except in insulated and refrigerated containers
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单选题Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.AIt is required on all vesselsBIt may be located in a conspicuous place in the wheelhouseCIt may be located at the bilge and ballast pump control stationDAll of the above
单选题If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.AThe towing line between the two vessels should be clear of the waterBThe towing line should be taut at all times between the vesselsCThere should be a catenary so the line dips into the waterDNone of the above
单选题Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? （）AStack weights should be less when using a solid bar lashing as compared to a wire lashingBStack heights may be increased when using a solid bar lashingCStack heights should be reduced when using a solid bar lashingDSolid bars should be used for lashing the first tier only，with wire lashings on the higher tier(s)
单选题Which statement is TRUE concerning lifeboat gripes?（）AThey must be released by freeing a safety shackleBThey should not be released until the boat is in lowering positionCThey may be adjusted by a turnbuckleDThey are normally used only with radial davits
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